The only actual statement about SWAT in this paper is: "We applied the statistical downscaling model to the Yellow River’s headwater catchment areas using the SWAT-BNU (Soil and Water Assessment Tool developed at Beijing National university) model." It is clear that key hydrologic results reported in the paper are based on SWAT output but details about the SWAT runs are not provided. In-depth details about the SWAT application used in the study can be found in the report called "Water supply and demand and implications for poverty alleviation in the YRB", which can be accessed (as of Nov. 22, 2011) at http://www.ccapwater.com/river/Wateravailabilityandaccess.pdf.